<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
	<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
	<title>js</title>
	<script type="text/javascript">
		// var abc = '44444';
		// alert(abc);

		// document.write('<p>学并思</p>');
		// prompt('这个是什么');

	</script>
	<script type="text/javascript" src="./js/main.js"></script>
</head>
<body>
	<a href="javascript:;" onclick="alert(123)">点我一下</a>
	<script type="text/javascript">

	var name = 20;
	var name;
	name = 9080;

	alert(name+20);



	alert(name);


	</script>
</body>
</html>